Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 8, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Apr 17, 1986, 7:09 PM CST for Custer County, Nebraska. It was in force for 51 min.
The area
The counties it named.
The facts
- Issued
- Apr 17, 1986, 7:09 PM CST (01:09 UTC)
- Expired
- Apr 17, 1986, 8:00 PM CST
- In force
- 51 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Custer County, NE
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.2 hours before the alert went out and 79 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 35 J/kg
- Mixed-layer CIN
- -139 J/kg
- Mixed-layer LCL
- 1206 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 204 m²/s²
- 0-3 km storm-relative helicity
- 411 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLBF 180109 SVRLBF NEC041-113-171-180200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 709 PM CST THU APR 17 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM CST FOR PEOPLE IN THE FOLLOWING COUNTIES OF WEST CENTRAL NEBRASKA...NORTHWEST CUSTER...EASTERN LOGAN AND EASTERN THOMAS T 700 PM CST RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 5 MILES ST OF ARNOLD NEBRSKA TO 5 MILES WEST OF HALSEY NEBRASKA MOVING ST. IF THREATENING WEATHER APPROACHES...GET TO A REINFORCED SHELTER AND PREPARE FOR STRONG DAMAGING WIND..LARGE HAIL..VERY HEAVY RAIN..AND DANGEROUS LIGHTNING. BRITTON 0108Z
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Apr 17, 2:01 PM CST, 5 hours 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 2 PM CST THU APR 17 1986 THUNDERSTORMS HAS DEVELOPED AND HAVE MOVED INTO SOUTHWEST AND WEST CENTRAL NEBRASKA..FROM 60 MILES SOUTHWEST OF NORTH PLATTE TO 75 MILES NORTHWEST OF NORTH PLATTE NEBRASKA. THEAVIEST THUNDERSTORM WAS 55 MILES WEST OF NORTH PLATTE NEBRASKA AND HAS PRODUCED MARBLE SIZE HAIL AND HEAVY RAIN. THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT ABOUT 25 MPH. " COFFIN
Special weather statement, Apr 17, 4:44 PM CST, 2 hours 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 440 PM CST THU APR 17 1986 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR SOUTHWEST NEBRASKA UNTIL 9 PM CST. AT 430 PM CST A 50 MILE WIDE BAND OF THUNDERSTORMS .. SOME SEVERE .. EXTENDED FROM NEAR MULLEN NEBRASKA .. ACROSS NORTH PLATTE .. INTO KANSAS JUST SOUTH OF MC COOK NEBRASKA. A FEW FUNNEL CLOUDS HAVE BEEN REPORTED WITH THIS LINE. MOVEMENT OF THE LINE WAS EAST AT AROUND 25 MILES PER HOUR. BRITTON
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 6:09 PM CST | Tornado Warning | LBF | Lincoln | 23 min |
| Apr 17, 7:09 PM CST | Severe Thunderstorm Warning | LBF | Logan, Thomas | 51 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1986Every severe thunderstorm warning in 1986
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.